linefeed and horizontal line within font tags crashes editor

[catfixer]

In IE only: Insert this text in source view:

<p> <font size="1"> <br /> <hr /> </font> </p>

Switch to wysiwyg. Now you can not switch to source or save changes.

There can be any amount of incidental text. But if the <hr /> and <br /> appear between the <font> tags, editor is essentially crashed.

Does not occur in FireFox.

[Alfonso Martínez de Lizarrondo]

Fixed in [297].

IE does a strange parsing of an invalid HTML document, so although the elements are read with lastChild, it happens that its parent isn't the original node.